This is the Size 38 version of our most popular Ibushi Shinai KAI. Weight is approximately 445g and the length 45.5in/115cm. "KAI was based on the Shinai that Miyazaki sensei gave to me during his visit to the USA. When I held his Shinai, my impression was how light his Shinai was. I asked if this Shinai had over 510g and his reply was "Of course!". The balance of the Shinai is so exceptional, that makes the Shinai feel so light. So far, I have not had the courage to use the Shinai that Sensei gave to me, but KAI has a very simmilar balance and feel of the Shinai Miyazaki sensei gave me. You will love it!" - Taro Ariga CEO (Kendo Renshi 7 Dan). The bamboo was specially treated with BIO Technology for durability, giving a dark traditional look. Very beautiful finish. The shape of the shinai is very simmilar to our popular KUNIMASA shinai.